MT47H128M16HG-3 IT:A Micron Technology Inc, MT47H128M16HG-3 IT:A Datasheet - Page 116

• Manufacturer Part Number: MT47H128M16HG-3 IT:A
• Manufacturer: Micron Technology Inc
• Type: DDR2 SDRAMr

Specifications of MT47H128M16HG-3 IT:A

• Organization: 128Mx16
• Address Bus: 17b
• Access Time (max): 4.5ns
• Maximum Clock Rate: 667MHz
• Operating Supply Voltage (typ): 1.8V
• Package Type: FBGA
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (max): 1.9V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 275mA
• Pin Count: 84
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Compliant

SELF REFRESH
PDF: 09005aef824f87b6
2gbddr2.pdf – Rev. F 12/10 EN
The SELF REFRESH command is initiated when CKE is LOW. The differential clock
should remain stable and meet
refresh mode. The procedure for exiting self refresh requires a sequence of commands.
First, the differential clock must be stable and meet
prior to CKE going back to HIGH. Once CKE is HIGH (
with three clock registrations), the DDR2 SDRAM must have NOP or DESELECT com-
mands issued for
ments is used to apply NOP or DESELECT commands for 200 clock cycles before
applying any other command.
t
XSNR. A simple algorithm for meeting both refresh and DLL require-
116
t
CKE specifications at least 1 ×
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2Gb: x4, x8, x16 DDR2 SDRAM
t
CK specifications at least 1 ×
t
CKE [MIN] has been satisfied
© 2006 Micron Technology, Inc. All rights reserved.
t
CK after entering self
SELF REFRESH
t
CK